#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main() {
    float a = 0, b = 0;
    float BMI = 0.0;
    scanf("%f %f", &a, &b);
    b = b / 100;
    BMI = a / (b * b);
    printf("%.2f", BMI);
    return 0;
}